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Is anyone here into upgrades and mods? This one *seems* like it's fairly harmless to the engine and according to the website you can gain 56HP, which IMHO would make it worth wile. Wonder what your opinions are and if anyone has any experience with the product or at least knows someone who installed this?

I've driven the Turner F30 335i before and after the Hartge power module and it does make a noticeable difference! Hartge and TMS have great reputations I can't see them building or selling something that hasn't been thoroughly tested.

I wish the video on the site showed the 335 power module not the 328. Kind of hard to get a real understanding of the gains by seeing the performance on the n20 engine not the n55. Any chance you can post a video of the 335 with the hartge module?

Exactly the same thing the current video has but with the 335 engine. Basically it shows a stock 0-100mph run with time. And then the same thing again with the hartge installed. I believe the improvement was 3.74 seconds. Pretty damn impressive but they always say the n20 engine is so underutilized it is easy to tune to improve numbers.

Seeing the same "test" on the 335 would let me know if I could also expect to see an almost 4 second improvement. That would give us a potential sub 12 second 1/4 mile time.

Exactly the same thing the current video has but with the 335 engine. Basically it shows a stock 0-100mph run with time. And then the same thing again with the hartge installed. I believe the improvement was 3.74 seconds. Pretty damn impressive but they always say the n20 engine is so underutilized it is easy to tune to improve numbers.

Seeing the same "test" on the 335 would let me know if I could also expect to see an almost 4 second improvement. That would give us a potential sub 12 second 1/4 mile time.

Aren't you leasing? I assume you can uninstall this module for service?

I wish the video on the site showed the 335 power module not the 328. Kind of hard to get a real understanding of the gains by seeing the performance on the n20 engine not the n55. Any chance you can post a video of the 335 with the hartge module?